This transcript has been automatically generated and may not be 100% accurate.

... the the ... the New Saab on Michael Casey it seems that among the concerns voiced was off by Facebook uses ... is of course privacy ... privacy sitting on the website itself ... the many privacy options he uses the trick is knowing how to use the ... county million Visy associate Professor Lawrie Faith Cranor all ... choices is going ... to go when Lauren tells a little ... while we can do look out sales ... well it's really important people in stock based on proven to be aware of who's going to see what they heard it so ... it's really important in its reach to your privacy settings to make sure the only your friends can see where it hurts to ... ride in a day you actually have a reporter spotted out Big Data Soft report today in the Piper ... and it's it's a really useful God in fact a month when it's paid off five of the paper ... just to run through some of the more important ones for us if you don't mind numbing utopia to the most secure browser this isn't a Mobius the veteran and how many people this is really do that ... Gray on why people are unaware that that doesn't really when you send messages and Facebook the ... eavesdropping detection could be ... but you can turn on secure the sch browsing cheaper than that I can also change your settings so that your applications are not going to stand on your friends every time you can play in her son ... one that jumped out of me you've got to click here to configure who can see in future posts and see where the wind way you think that ... that tagging function that it does seem like an insidious problem when interviewed about units attacking itself but by the dual tagging you ... the pop up on somebody is streams are correct or so away to protect itself against a ... re entry you can adjust your settings ... somebody else had she lived there ... you get notified in so you have the opportunity to block the ... use and haggis offences ready ... what what are some of the other ones there ... I'm in it that that this is a whole host of things that that the deal ... pray well every time you cursed there's a little icon next year as they say she was going to see your ... son so stubborn to take a look at that ... you can also be in your timeline and find out ... who has seen here is the pastor of the kid who couldn't see your snapped as she you cannot go back and say anything that has the public needed to change that I don't want my life to the public forever ... aam but one that causes a lot of that now that ... the defense team with with Facebook I'm ... that that this privacy concerns ... great so there are whole range of settings that Ally needed control what apps get to know about you and also ... the only acts that has tons year timelines that your friends see your interaction that to you can control that if you find the right sentence ... ok ... thank you very much to time they're of our practices to propose to have you with this